color 4 extends color 3

Author: svgeesus

css-color-4/Overview.bs

@@ -47,9 +47,10 @@ Introduction</h2>
 
 
 	It not only defines the color-related properties and values that
-	already exist in <a href="https://www.w3.org/TR/CSS1">CSS1</a> and <a
-	href="https://www.w3.org/TR/CSS2/">CSS2</a>, but also defines new
-	properties and values.
+	already exist in <a href="https://www.w3.org/TR/CSS1">CSS1</a>, <a
+	href="https://www.w3.org/TR/CSS2/">CSS2</a>,
+	and <a href="https://www.w3.org/TR/css-color-3/">CSS Color 3</a>,
+	but also defines new properties and values.
 
 
 <h2 id="the-color-property">